Constantius II (337-361), AR reduced siliqua, issued 355-360.  Arles/Constantia, 2nd officina, 2.20g, 17mm.
Obv: D N CONSTAN-TIVS P F AVG, pearl-diademed, draped and cuirassed bust of Constantius II right, seen from front.
Rev: VOTIS-XXX-MVLTIS-XXXX, legend in four lines within wreath terminating in large jewel; SCON in exergue.
RIC 261.
From the Tiberius Collection.